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What is infrared light?

For our purposes, infrared means near-IR wavelengths. Deeper than red light, and imperceptible to our vision, but still light that can be focused by typical lenses and captured by typical CMOS sensors. It is NOT representative of heat, and is distinct from thermal imaging which requires specialized lenses and sensors.

In common usage, IR light of this type is used for security cameras, for satellite and agricultural imaging, and for short range optical systems like TV remotes.

Category: False Colour